What is the purpose of timing analysis?
Figure 6.1: Timing diagram notation as used in this article. The purpose of timing analysis is to determine the sequence of events in each of the bus cycles so that we can delimit, among other things, the time available for each of the components to respond to changes.
What is slack in static timing analysis?
Slack is the margin by which a timing requirement is met or not met. Positive slack indicates the margin by which a requirement is met, and negative slack indicates the margin by which a requirement is not met.
What are setup and hold time violations?
Any violation may cause incorrect data to be captured, which is known as setup violation. Hold time is defined as the minimum amount of time after the clock’s active edge during which data must be stable. Violation in this case may cause incorrect data to be latched, which is known as a hold violation.
What is critical path in timing analysis?
The critical path is defined as the path between an input and an output with the maximum delay. Once the circuit timing has been computed by one of the techniques listed below, the critical path can easily be found by using a traceback method.
What are the static timing analysis interview questions?
Static timing analysis interview questions series is an initiative to help students/professionals who have basic knowledge of STA to quickly ramp up for an interview .The course intended audience is beginners who are looking to get into the VLSI industry .
How are reset and clock gating interview questions determined?
Reset and clock gating interview questions The level is determined by a majority opinion of students who have reviewed this class. The teacher’s recommendation is shown until at least 5 student responses are collected.
How does jitter in clock period affect timing?
So, to cover worst case timing scenario, we need to time as per (20 ns + CLOCK_PERIOD – jitter). So, effectively, we will get (CLOCK_PERIOD – jitter) as effective clock period. In other words, jitter in clock period makes the setup timing more tight. Or it decreases setup slack for single cycle timing paths.
What happens if the timing file is wrong?
I mean, from the chip database upward, while for STA, these things need to be defined in the timing file. And if this timing file is wrong or incomplete, the STA goes not provide the correct result. In a sense, the gate-level simulation is the double-check for the correctness of the timing file, and for everything that is not there.